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http://dx.doi.org/10.7839/ksfc.2019.16.1.001

Study on Micro-bubble Generation Characteristics in Venturi Cavitation using Laser Diffractometer  

Lim, Yun Gyu (Department of Mechanical Design Engineering, Korea Polytechnic University)
Yang, Hae Jeong (Department of Mechanical Design Engineering, Korea Polytechnic University)
Kim, Yung Il (Department of Nano Optical Engineering, Korea Polytechnic University)
Publication Information
Journal of Drive and Control / v.16, no.1, 2019 , pp. 1-6 More about this Journal
Abstract
The use of micro bubbles in industrial fields has been increasing in the recent years., particularly micro-bubble sterilization and water purification effects. Various methods have been developed for the generation of micro-bubbles. Depending on the method of generating bubbles, the micro-bubbles can be roughly classified into saturation molding, cavitation and rotation flow types. The objective of this study was to use ventilated tube type as a method of generating micro-bubbles in order to purify large amount of water quality such as lakes and reservoirs. This method shows a difference in efficiency in which micro-bubbles are generated depending on the contact ratio of gas to liquid. The study also investigated the optimal gas liquid contact ratio by applying various orifice methods and investigated the optimum condition of micro-bubble generation by gas Based on this, a technology to develop a micro-bubble generator with a venturi type nozzle shape that has a high water purification effect was developed.
Keywords
Micro-bubble; Venturi Tube; Air-Fluid Contact Ratio; Cavitation; Sterilizing Power; Water Quality Purify;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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